Temperature control of integrated fractionation and...

Details Temperature control of integrated fractionation and... Temperature control of integrated fractionation and...

C - Chemistry, Metallurgy

10

G

196/237

C10G 29/02 (2006.01) B01D 3/42 (2006.01) C07C 7/00 (2006.01) C07C 7/04 (2006.01)

Patent

CA 1083067

ABSTRACT OF THE DISCLOSURE A hydrocarbon stream comprising benzene is stripped at a high temperature to allow passage of the stripper bottoms stream into a clay treating zone without further heating, and the effluent of the clay treating zone is then exchanged against the feed stream to the stripper column to recover heat. Operation at the opti- mum clay treating temperature is achieved by adjusting the amount of the stripper bottoms stream which is split off for cooling by heat exchange against the feed to the stripper column. The cooled split-off portion is then admixed with the remaining high temperature portion.

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